POSIX Subroutine: Gets the terminal pathname.
USE IFPOSIX
CALL PXFTTYNAM (ifildes,s,ilen,ierror)
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ifildes |
(Input) INTEGER(4). The file descriptor associated with the terminal. |
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s |
(Output) Character. The returned terminal pathname. |
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ilen |
(Output) INTEGER(4). The length of the string stored in s. |
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ierror |
(Output) INTEGER(4). The error status. |
If successful, ierror is set to zero; otherwise, an error code.